Skip to content


Subversion checkout URL

You can clone with
Download ZIP
Libav github mirror, clone of git://
C Assembly C++ Makefile Shell Objective-C
Failed to load latest commit information.
compat w32pthreads: Load dynamically loaded functions on demand
doc Screenpresso SPV1 decoder
libavcodec cabac: Make CABAC states hardcoded
libavdevice Bump major versions of all libraries
libavfilter vf_framepack: Use av_image_copy() where appropriate
libavformat asfdec: do not skip padding if offset is above packet size - padding
libavresample avresample: Remove an unused variable
libavutil avutil/avstring: Inline some tiny functions
libswscale lavu: Drop the {minus,plus}1 suffix from AVComponentDescriptor fields
presets presets: spelling error in libvpx 1080p50_60
tests checkasm: Fix the function name sorting algorithm
tools tools: Drop a stale header
.gitattributes Treat all '*.pnm' files as non-text file
.gitignore Checkasm: assembly testing and benchmarking tool
.travis.yml travis: fix dependencies
COPYING.GPLv3 Add configure option to upgrade (L)GPL to version 3.
COPYING.LGPLv2.1 cosmetics: Delete empty lines at end of file.
COPYING.LGPLv3 Add configure option to upgrade (L)GPL to version 3.
CREDITS partially rename FFmpeg to Libav
Changelog Screenpresso SPV1 decoder
INSTALL doc: clarify configure features
LICENSE license: Mention that vf_interlace is GPL, not LGPL
Makefile checkasm: Always link statically
README doc: Add more information in the README doc: Add travis badge
RELEASE Make the RELEASE file match with the most recent tag
arch.mak ppc: vsx: Implement float_dsp
avconv.c lavc: Enable side data only packets by default
avconv.h Add a quality factor packet side data
avconv_dxva2.c avconv_dxva2: add hevc support
avconv_filter.c avconv: Do not try to configure filter outputs without streams
avconv_opt.c avconv: Make the private options discovery more manifest
avconv_vda.c avconv: vda: Unlock the pixel buffer once it is accessed
avconv_vdpau.c avconv_vdpau: allocate video surface of VDPAU-specified size
avplay.c lavc: AV-prefix all codec capabilities
avprobe.c avprobe: Print the display matrix from per-stream sidedata
cmdutils.c lavc: AV-prefix all codec capabilities
cmdutils.h avconv: use read_file() for reading the 2pass stats
cmdutils_common_opts.h avplay: Accept cpuflags option
common.mak checkasm: Always link statically
configure configure: When disabling a library disable all the related components
library.mak build: Support executable only ldflags Drop git- prefix from version labels


Build Status

Libav is a collection of libraries and tools to process multimedia content such as audio, video, subtitles and related metadata.


  • libavcodec provides implementation of a wider range of codecs.
  • libavformat implements streaming protocols, container formats and basic I/O access.
  • libavutil includes hashers, decompressors and miscellaneous utility functions.
  • libavfilter provides a mean to alter decoded Audio and Video through chain of filters.
  • libavdevice provides an abstraction to access capture and playback devices.
  • libavresample implements audio mixing and resampling routines.
  • libswscale implements color conversion and scaling routines.


  • avconv is a command line toolbox to manipulate, convert and stream multimedia content.
  • avplay is a minimalistic multimedia player.
  • avprobe is a simple analisys tool to inspect multimedia content.
  • Additional small tools such as aviocat, ismindex and qt-faststart.


The offline documentation is available in the doc/ directory.

The online documentation is available in the main website and in the wiki.


Conding examples are available in the doc/example directory.


Libav codebase is mainly LGPL-licensed with optional components licensed under GPL. Please refer to the LICENSE file for detailed information.

Something went wrong with that request. Please try again.